Method and apparatus for configuring aggregate maximum bit rate

Abstract

A system for configuring a UE-AMBR includes a MME to send the UE-AMBR to an eNB covering the serving cell of the UE, the eNB covering the serving cell of the UE establishes a radio access bearer of the UE on at least one secondary cell. The MME sends an AMBR of the UE in the primary eNB covering the serving cell of the UE and an AMBR of the UE in a secondary eNB to the primary eNB. The primary eNB sends the AMBR of the secondary eNB to the corresponding secondary eNB. The technical solutions of the present disclosure can make total rate of all non-GBR services of the UE be not larger than the UE-AMBR when the UE has multiple S1 bearers or one S1 bearer.

What is claimed is: 
     
       1. A method performed by a first base station in a communication system, the method comprising:
 receiving, from an entity for managing mobility of a user equipment (UE), an initial context setup request message including a total aggregate maximum bit rate (AMBR) of the UE (UE-AMBR); 
 determining a first base station UE-AMBR and a second base station UE-AMBR based on the total UE-AMBR; 
 transmitting, to a second base station, a request message for dual connectivity, the request message including the second base station UE-AMBR and information on a radio access bearer to be established; and 
 receiving, from the second base station, a response message in response to the request message, 
 wherein the first base station UE-AMBR and the second base station UE-AMBR are enforced by the first base station and the second base station, respectively. 
 
     
     
       2. The method of  claim 1 , wherein the request message further includes at least one of an UE identifier associated with an interface between the first base station and the second base station, an identifier of the radio access bearer, information on quality of service for the radio access bearer, information on a transport layer address for an uplink, or information on a tunnel identifier for the uplink. 
     
     
       3. The method of  claim 1 , wherein the response message includes information on a transport layer for a downlink and a tunnel identifier for the downlink. 
     
     
       4. The method of  claim 1 , wherein each UE-AMBR includes an uplink UE-AMBR and a downlink UE AMBR. 
     
     
       5. The method of  claim 1 , wherein the total UE-AMBR is split into the first base station UE-AMBR and the second base station UE-AMBR. 
     
     
       6. A method performed by a second base station in a communication system, the method comprising:
 receiving, from a first base station, a request message for dual connectivity, the request message including information on a radio access bearer to be established; and 
 transmitting, to the first base station, a response message in response to the request message, 
 wherein an initial context setup request message including a total aggregate maximum bit rate (AMBR) of a user equipment (UE) (UE-AMBR) is transmitted from an entity for managing mobility of the UE to the first base station, 
 wherein the request message further includes a second base station UE-AMBR, 
 wherein a first base station UE-AMBR and the second base station UE-AMBR are determined by the first base station based on the total UE-AMBR, and 
 wherein the first base station UE-AMBR and the second base station UE-AMBR are enforced by the first base station and the second base station, respectively. 
 
     
     
       7. The method of  claim 6 , wherein the request message further includes at least one of an UE identifier associated with an interface between the first base station and the second base station, an identifier of the radio access bearer, information on quality of service for the radio access bearer, information on a transport layer address for an uplink, or information on a tunnel identifier for the uplink. 
     
     
       8. The method of  claim 6 , wherein the response message includes information on a transport layer for a downlink and a tunnel identifier for the downlink. 
     
     
       9. The method of  claim 6 , wherein each UE-AMBR includes an uplink UE-AMBR and a downlink UE AMBR. 
     
     
       10. The method of  claim 6 , wherein the total UE-AMBR is split into the first base station UE-AMBR and the second base station UE-AMBR. 
     
     
       11. A first base station in a communication system, the first base station comprising:
 a transceiver; and 
 a controller configured to:
 control the transceiver to receive, from an entity for managing mobility of a user equipment (UE), an initial context setup request message including a total aggregate maximum bit rate (AMBR) of the UE (UE-AMBR); 
 determine a first base station UE-AMBR and a second base station UE-AMBR based on the total UE-AMBR; 
 control the transceiver to transmit, to a second base station, a request message for dual connectivity, the request message including the second base station UE-AMBR, and information on a radio access bearer to be established; and 
 control the transceiver to receive, from the second base station, a response message in response to the request message, 
 
 wherein the first base station UE-AMBR and the second base station UE-AMBR are enforced by the first base station and the second base station, respectively. 
 
     
     
       12. The first base station of  claim 11 , wherein the request message further includes at least one of an UE identifier associated with an interface between the first base station and the second base station, an identifier of the radio access bearer, information on quality of service for the radio access bearer, information on a transport layer address for an uplink, or information on a tunnel identifier for the uplink. 
     
     
       13. The first base station of  claim 11 , wherein the response message includes information on a transport layer for a downlink and a tunnel identifier for the downlink. 
     
     
       14. The first base station of  claim 11 , wherein each UE-AMBR includes an uplink UE-AMBR and a downlink UE AMBR. 
     
     
       15. The first base station of  claim 11 , wherein the total UE-AMBR is split into the first base station UE-AMBR and the second base station UE-AMBR. 
     
     
       16. A second base station in a communication system, the second base station comprising:
 a transceiver; and 
 a controller configured to: 
 control the transceiver to receive, from a first base station, a request message for dual connectivity, the request message including information on a radio access bearer to be established; and 
 control the transceiver to transmit, to the first base station, a response message in response to the request message, 
 wherein an initial context setup request message including a total aggregate maximum bit rate (AMBR) of a user equipment (UE) (UE-AMBR) is transmitted from an entity for managing mobility of the UE to the first base station, 
 wherein the request message further includes a second base station UE-AMBR, 
 wherein a first base station UE-AMBR and the second base station UE-AMBR are determined by the first base station based on the total UE-AMBR, and 
 wherein the first base station UE-AMBR and the second base station UE-AMBR are enforced by the first base station and the second base station, respectively. 
 
     
     
       17. The second base station of  claim 16 , wherein the request message further includes at least one of an UE identifier associated with an interface between the first base station and the second base station, an identifier of the radio access bearer, information on quality of service for the radio access bearer, information on a transport layer address for an uplink, or information on a tunnel identifier for the uplink. 
     
     
       18. The second base station of  claim 16 , wherein the response message includes information on a transport layer for a downlink and a tunnel identifier for the downlink. 
     
     
       19. The second base station of  claim 16 , wherein each UE-AMBR includes an uplink UE-AMBR and a downlink UE AMBR. 
     
     
       20. The second base station of  claim 16 , wherein the total UE-AMBR is split into the first base station UE-AMBR and the second base station UE-AMBR. 
     
     
       21. A method in a communication system which comprises an entity for managing mobility of a user equipment (UE), a first base station, and a second base station, the method comprising:
 identifying, by the entity, a total aggregate maximum bit rate (AMBR) of the UE (UE-AMBR) based on a subscribed UE-AMBR; 
 transmitting, by the entity to the first base station, an initial context setup request message including the total UE-AMBR; 
 determining, by the first base station, a first base station UE-AMBR and a second base station UE-AMBR based on the total UE-AMBR; 
 transmitting, by the first base station to a second base station, a request message for dual connectivity, the request message including the second base station UE-AMBR and information on a radio access bearer to be established; and 
 transmitting, by the second base station to the first base station, a response message in response to the request message, 
 wherein the first base station UE-AMBR and the second base station UE-AMBR are enforced by the first base station and the second base station, respectively. 
 
     
     
       22. The method of  claim 21 ,
 wherein the request message further includes at least one of an UE identifier associated with an interface between the first base station and the second base station, an identifier of the radio access bearer, information on quality of service for the radio access bearer, information on a transport layer address for an uplink, or information on a tunnel identifier for the uplink, and 
 wherein the response message includes information on a transport layer for a downlink and a tunnel identifier for the downlink. 
 
     
     
       23. The method of  claim 22 , further comprising:
 transmitting, by the first base station to the entity, a message including the information on the transport layer for the downlink and the tunnel identifier for the downlink. 
 
     
     
       24. The method of  claim 21 ,
 wherein each UE-AMBR includes an uplink UE-AMBR and a downlink UE AMBR, and 
 wherein the total UE-AMBR is split into the first base station UE-AMBR and the second base station UE-AMBR. 
 
     
     
       25. A communication system comprising:
 an entity for managing mobility of a user equipment (UE) configured to identify a total aggregate maximum bit rate (AMBR) of the UE (UE-AMBR) based on a subscribed UE-AMBR, and transmit, to a first base station, an initial context setup request message including the total UE-AMBR; 
 the first base station configured to determine a first base station UE-AMBR and a second base station UE-AMBR based on the total UE-AMBR, and transmit, to a second base station, a request message for dual connectivity, wherein the request message includes the second base station UE-AMBR and information on a radio access bearer to be established; and 
 the second base station configured to transmit, to the first base station, a response message in response to the request message, 
 wherein the first base station UE-AMBR and the second base station UE-AMBR are enforced by the first base station and the second base station, respectively. 
 
     
     
       26. The communication system of  claim 25 ,
 wherein the request message further includes at least one of an UE identifier associated with an interface between the first base station and the second base station, an identifier of the radio access bearer, information on quality of service for the radio access bearer, information on a transport layer address for an uplink, or information on a tunnel identifier for the uplink, and 
 wherein the response message includes information on a transport layer for a downlink and a tunnel identifier for the downlink. 
 
     
     
       27. The communication system of  claim 26 , wherein the first base station is further configured to transmit, to the entity, a message including the information on the transport layer for the downlink and the tunnel identifier for the downlink. 
     
     
       28. The communication system of  claim 25 ,
 wherein each UE-AMBR includes an uplink UE-AMBR and a downlink UE AMBR, and 
 wherein the total UE-AMBR is split into the first base station UE-AMBR and the second base station UE-AMBR.